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Canyon County


Facts & Information

The Cities and communities of Canyon County, Idaho *


Caldwell (County Seat)


Melba, Middleton

Nampa, Notus




*This list of cities may not be complete. The list may contain towns, cities, villages, boroughs, neighborhoods, townships, ghost towns and other populated places.

If you have information about any of these unlinked communities, please send it to us and we will add a page for that community. Some of these places above may only be neighborhoods or local area names and are not listed with the census at all or just included in a larger surrounding designated census area..

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Information & Facts about Canyon County, Idaho


Canyon County website

Canyon County Courthouse
1115 Albany
Caldwell, ID 83605

Canyon County Clerk-Recorder
1115 Albany
Caldwell, ID 83605
(208) 454-7556


2000 - 131,441 persons

Housing Units:
2000 - 47,965 units

2000 - 81 persons per square mile


Neighboring Counties include:
East: Ada
Northeast: Gem
North: Payette
West: Oregon border
South and Southwest: Owyhee


The climate in Canyon County is seasonal with all four seasons represented.

Yearly average temperature: 65 degrees F.
Yearly average low temperature: 32 degrees F.
Yearly average high temperature:

Yearly precipitation: 10.6 inches
Yearly snowfall: 16.5 inches


Other Facts & Figures:

Median Income:
2000 -
Per capita Income:
2000 - $15,155


Some say the county was named for a canyon of the Boise River, but others believe it was for the Snake River Canyon that is a boundary for the county. In the area's early history, John Reed's group were killed here in 1813 near the mouth of the Boise River. Later, the Ward Massacre occurred near Middleton. The Hudson's Bay Company established Fort Boise in 1834 near what is now Parma, but abandoned it in 1855. The second Fort Boise was built near the old one, but it also ceased to be used and went into decline. Little sign is left of either fort. The county was created on 7 March 1891 and Caldwell was named the first and only county seat.


Total area: 604 square miles (approximate)
Land 589.7 square miles
Water area: 13.8 square miles

The Treasure valley is surrounded by several mountain ranges - Owyhee, Weiser and Boise. Some peaks in these ranges rise to 9,000 above sea level. Since the valley is basically a desert area, transformed by irrigation, there is an abundance of sagebrush and chaparral. As the slope increases there are more fir, pine and juniper.



US GenWeb page for Canyon County

The Political Graveyard


Nampa Public Library
101 Eleventh Ave South
Nampa, ID 83651
Phone: (208) 468-5800


Nampa School District
619 S. Canyon
Nampa, Idaho 83686
Phone: 208-468-4600
Fax: 208-468-4638

Caldwell School District
1101 E Cleveland Blvd
Caldwell, ID 83605
Fax: :208-455-3302

Vallivue School District
2423 S Georgia Ave
Caldwell, ID 83605-4477
Phone: 208-454-0445

Albertson College
2112 Cleveland Blvd.
Caldwell, ID 83605
Phone: (208) 459-5011
Fax: (208) 459-5175


Canyon County has traditionally been an agricultural area, but other aspects of the economy are becoming more prominent. The larger cities in the county provide processing and distribution for the agriculture and livestock here. Manufacturing makes up about 20% of the local economy with retail trade at about 11% and social services along with educational health taking about 18%.

Caldwell Economic Development Council
Phone: 208-454-0087

Organizations & Groups:

Nampa Chamber of Commerce
1305 3rd Street South
Nampa, Idaho 83651
Phone: (208) 466-4641
Fax: (208) 466-4677
Toll Free: 1-877-20NAMPA

Caldwell Chamber Of Commerce
704 Blaine St
P.O. Box 819
Caldwell, ID 83606
Phone: 208-459-7493
Fax: 208-454-1284

Attractions & Other Information:

The area abounds in recreation with river rafting and rock hunting and climbing being favorite activities. Hiking, skiing, biking and more are popular activities depending on the season.

Canyon County Fair - held each summer at the end of July

Canyon County Historical Museum
1200 Front Street
Nampa, ID 83651
(208) 467-7611

Warhawk Air Museum
4917 Aviation Way
Caldwell, ID 83605
Phone: (208) 454-2854

Our Memories Museum
1122 Main Street
Caldwell, ID 83605
Phone: (208) 459-1413

Snake River Dayz
held in July each year. The feature of this event is the Snake River Stampede

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This page was last updated on 1 May 2009 at 11:45 am

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